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作者:May, Jerrold H.; Spangler, William E.; Strum, David P.; Vargas, Luis G.
作者单位:Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh; Duquesne University; University of Pennsylvania
摘要:This paper reviews the general problem of surgical scheduling. We organize the literature based on the time frame or planning horizon of the schedule into six categories: capacity planning, process reengineering/redesign, the surgical services portfolio, procedure duration estimation, schedule construction, and schedule execution, monitoring, and control. We survey past work and suggest topics for potential future research in each of those areas.
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作者:Schoenherr, Tobias; Mabert, Vincent A.
作者单位:Michigan State University; Michigan State University's Broad College of Business; Indiana University System; Indiana University Bloomington; IU Kelley School of Business
摘要:This research explores procurement strategies for multi-item requests for quotation (RFQs) in business-to-business (B2B) markets using responses from 825 purchasing professionals. The study first establishes procurement strategies that differ based on their level of strategic emphasis, i.e., the importance that is placed on the pursuit of four strategic objectives. Underlying objectives, which are obtained via factor analysis, include the focus on price, security of supply, internal procuremen...
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作者:Allon, Gad; Zeevi, Assaf
作者单位:Northwestern University; Columbia University
摘要:We address the simultaneous determination of pricing, production, and capacity investment decisions by a monopolistic firm in a multi-period setting under demand uncertainty. We analyze the optimal decision with particular emphasis on the relationship between price and capacity. We consider models that allow for either bi-directional price changes or models with markdowns only, and in the latter case we prove that capacity and price are strategic substitutes.
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作者:Chen, Rachel R.; Roma, Paolo
作者单位:University of California System; University of California Davis; University of Palermo
摘要:Under group buying, quantity discounts are offered based on the buyers' aggregated purchasing quantity, instead of individual quantities. As the price decreases with the total quantity, buyers receive lower prices than they otherwise would be able to obtain individually. Previous studies on group buying focus on the benefit buyers receive in reduced acquisition costs or enhanced bargaining power. In this paper, we show that buyers can instead get hurt from such cooperation. Specifically, we co...
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作者:Gul, Serhat; Denton, Brian T.; Fowler, John W.; Huschka, Todd
作者单位:Arizona State University; Arizona State University-Tempe; North Carolina State University; Mayo Clinic
摘要:Uncertainty in the duration of surgical procedures can cause long patient wait times, poor utilization of resources, and high overtime costs. We compare several heuristics for scheduling an Outpatient Procedure Center. First, a discrete event simulation model is used to evaluate how 12 different sequencing and patient appointment time-setting heuristics perform with respect to the competing criteria of expected patient waiting time and expected surgical suite overtime for a single day compared...
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作者:Durango-Cohen, Elizabeth J.; Yano, Candace A.
作者单位:Illinois Institute of Technology; University of California System; University of California Berkeley; University of California System; University of California Berkeley
摘要:We study a Forecast-Commitment contract motivated by a manufacturer's desire to provide good service in the form of delivery commitments in exchange for reasonable forecasts and a purchase commitment from the customer. The customer provides a forecast for a future order and a guarantee to purchase a portion of it. In return, the supplier commits to satisfy some or all of the forecast. The supplier pays penalties for shortfalls of the commitment quantity from the forecast, and for shortfalls of...
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作者:Zhang, Sheng Hao; Cheung, Ki Ling
作者单位:Xi'an Jiaotong University; Hong Kong University of Science & Technology
摘要:This paper considers a supply chain with one supplier and multiple retailers that face exogenous heterogeneous end-customer demands, where all parties utilize base-stock policies. Each retailer is restricted to order once in every order cycle and their orders are replenished in a balanced manner within the cycle. Our study investigates the impact of information sharing and advance order information (AOI) on the supply chain. We find that the supplier benefits from the two mechanisms via two im...
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作者:Chiu, Chun-Hung; Choi, Tsan-Ming; Tang, Christopher S.
作者单位:Hong Kong Polytechnic University; University of California System; University of California Los Angeles
摘要:Channel rebates and returns policies are common mechanisms for manufacturers to entice retailers to increase their order quantities and sales ultimately. However, when the underlying demand depends on the retail price, it has been known that channel coordination cannot be achieved if only one of these mechanisms is deployed. In this article, we show that a policy that combines the use of wholesale price, channel rebate, and returns can coordinate a channel with both additive and multiplicative...
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作者:Sosic, Greys
作者单位:University of Southern California
摘要:In their recent paper, Nagarajan and Sosic study an assembly supply chain in which n suppliers sell complementary components to a downstream assembler, who faces a price-sensitive deterministic demand. Suppliers may form alliances, and each alliance then sells a kit of components to the assembler and determines the price for that kit. The assembler buys the components (kits) from the alliances and sets the selling price of the product. Nagarajan and Sosic consider three modes of competition-su...
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作者:Xu, He; Yao, David D.; Zheng, Shaohui
作者单位:Huazhong University of Science & Technology; Columbia University; Hong Kong University of Science & Technology
摘要:We study an inventory system in which a supplier supplies demand using two mutually substitutable products over a selling season of T periods, with a single replenishment opportunity at the beginning of the season. As the season starts, customer orders arrive in each period, for either type of products, following a nonstationary Poisson process with random batch sizes. The substitution model we consider combines the usual supplier-driven and customer-driven schemes, in that the supplier may ch...